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Unread 01-27-2014, 09:34 PM   #1
mustang67ford
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Havoline or rotella may switch

In my 05 rubicon with 4.0, I have been running havoline 10w30 regular oil. I actually only have like 28,000 miles on the jeep (don't run it here in the PA winters). Anyways, when I switched to this oil, it seemed like a popular one at the time. Now, I recently purchased a 99GC with 4.0 as well with 117,000 miles. From what i read on the GC forum, I am thinking of running rotella 10w30 oil non-synthetic. I would like to run the same oil in both jeeps so I was thinking of switching the ruby over to 10w30. Any thoughts?

I also have a sludge problem in my GC which I am going to try to address with marvel mistry oil.

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Unread 01-28-2014, 02:38 PM   #2
sunsetclb
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I use rotella in everything, have for years. No issues that I can tell.
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Unread 01-28-2014, 02:46 PM   #3
ChrisHager
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Rotella has a stout add pack that the 4.0 likes (high ZDDP content). It also cleans very well which will be helpful for the sludge issue in the WJ. I'd say go for it for the TJ.

FWIW, I use Rotella T5 10W-30 in my 4.0 WJ, 2.5 TJ, and 5.9 J-10.
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But ChrisHager makes me want to poor water on a burning bucket of gasoline now just out of curiosity.
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The latest lift kit from Rough Country? :D
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Your symptoms sounds just like what it does when it's not doing what it should because of how it is.
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Unread 01-28-2014, 02:48 PM   #4
TheBoogieman
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Isn't Rotella that hazelnut spread stuff? Oh,that's Nutella.
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Unread 01-28-2014, 03:42 PM   #5
77351wcj5
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Isn't Rotella that hazelnut spread stuff? Oh,that's Nutella.
Yep. That is actually some pretty good stuff.
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Unread 01-29-2014, 10:15 AM   #6
mustang67ford
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Thanks, I picked up the 10W30 for the GC. Not the synthetic, just the regular.
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Unread 01-29-2014, 11:10 AM   #7
Robert J. yates
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Quote:
Originally Posted by ChrisHager View Post
Rotella has a stout add pack that the 4.0 likes (high ZDDP content). It also cleans very well which will be helpful for the sludge issue in the WJ. I'd say go for it for the TJ.

FWIW, I use Rotella T5 10W-30 in my 4.0 WJ, 2.5 TJ, and 5.9 J-10.
FWIW... Shell reduced the additive package in Rotella some time ago. If you really want a high ZDDP oil, go for something like Amsoil Z-Rod and some of the other specialty manufacturers.

http://www.amsoil.com/shop/by-produc...tic-motor-oil/
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Unread 01-29-2014, 11:19 AM   #8
ChrisHager
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When did they lower it? Just curious. It appears it still has quite a bit...

2010 VOA:

Phosphorus..976..975
Zinc........1189..1197

I found a UOA from 4/13 for a Dodge Caliber that had Phosphorus between 750 and 1000, Zinc between 850 and 1200.
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But ChrisHager makes me want to poor water on a burning bucket of gasoline now just out of curiosity.
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Originally Posted by billzcat1 View Post
The latest lift kit from Rough Country? :D
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Your symptoms sounds just like what it does when it's not doing what it should because of how it is.
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Unread 01-29-2014, 12:13 PM   #9
Robert J. yates
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The issue with high ZDDP packages is that it not only impacts catalytic converter but DPF's as well (soot/ash formation) so the diesel oils have seen reduced packages much in the same way regular oils have. I used to run T5 when I first built my motor and switched over to Z-rod since it is specifically designed to deal with flat tappet cams. A couple of VOA's for comparison. T5 is OK and probably plenty fine for a stock 4.0.
z-rod.jpg   rotella.gif  
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Unread 01-29-2014, 12:45 PM   #10
ChrisHager
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Awesome! Thanks for the VOA's! Amsoil sure does have more than Rotella. I know ZDDP does affect catalytic converters. I view it as a cheaper expense compared to new lifters/camshaft though.

I switched to T5 after having a lifter failure around 87k that cost me a weekend of work and about $700. I had records showing that the PO had regular oil changes done by the dealer. Ironically, I later found out the dealer changed a lifter (not plural) for the PO at 66k (and a 242 at 80k??). Most likely, they didn't pull the camshaft and inspect the lobes. My 87k failure was probably due to Jeep's cheap fix (thanks, Jeep ).

That being said, why the failure at 66k? I have heard a time or two about these 4.0s eating lifters but it makes you wonder if these failures are due to inadequate amounts of ZDDP in oil.

Here are a couple pictures of the carnage. The camera wasn't being kind that day but you get the point.







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ChrisHager's 'Grilled' Thread

WJ Torque Specs

Quote:
Originally Posted by tommyooooooh View Post
But ChrisHager makes me want to poor water on a burning bucket of gasoline now just out of curiosity.
Quote:
Originally Posted by billzcat1 View Post
The latest lift kit from Rough Country? :D
Quote:
Originally Posted by Jeeples View Post
Your symptoms sounds just like what it does when it's not doing what it should because of how it is.
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Unread 01-29-2014, 01:52 PM   #11
mike_dippert
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I tried all sorts of additives to help my lifter tick. None (including MMO) worked. I used M1 5-40 for 6k miles, then found Rotella T6 on Amazon cheaper so I'm using that now. The tick is better, but not gone.
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Unread 01-31-2014, 09:30 PM   #12
TJJP77
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I run Valvoline VR-1 10W-30 non-synthetic. Engine is the quietest it's ever been when using this oil. ZDDP only really impacts the catalytic converter if you are burning oil - remember that catalytic converters have been around since 1975 and ZDDP in oil wasn't really reduced until the late 1990's/early 2000's. I know plenty of people that had 90's cars with 200K+ mile on them on the original converter.
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